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From: wjb@cogsci.cog.jhu.edu
Newsgroups: comp.unix.sysv386
Subject: Re: Does ESIX still not support RLL?
Message-ID: <23.Apr.91.011622.51@cogsci.cog.jhu.edu>
Date: 23 Apr 91 05:16:22 GMT
References: <1991Apr22.210543.27730@thyme.jpl.nasa.gov> <3080@cirrusl.UUCP> <1991Apr23.030237.7383@kessner.denver.co.us>
Organization: JHU Cognitive Science Center, Baltimore, MD
Lines: 16

In article <3080@cirrusl.UUCP> Rahul Dhesi <dhesi@cirrus.COM> writes:
>>The myth that ESIX doesn't support RLL controllers is a bit of marketing
>>hype.
>
>How can ESIX even know whether the controller uses RLL?  How can
>anybody find this out without ripping the disk apart and analyzing the
>bit-patterns stored on the platter?

	True enough, but in the PC world "RLL" usually means an AT bus disk
controller which uses a Western Digital compatible register set and has 26
sectors per track.  The first two are assumptions built into the kernel and
device driver respectively.  The third is obtained from the BIOS information
about your hard drive.  There are probably some IDE drives out there which
mimic having 26 sectors per track which ESIX would call "RLL".

				Bill Bogstad